Benelli knows that hunting can take you to some very unforgiving environments that wreak havoc on metals, so they developed BE.S.T. technology to protect your shotgun with a rugged coating to put an end to corrosion and rust. BE.S.T. is applied in an environmentally friendly, high-vacuum, radio-frequency plasma technology that bonds the diamond-derived Benelli BE.S.T. surface treatment to the metal components. In fact, it's so effective, Benelli warranties treated parts against corrosion and rust for 25 years.